(black) instead of a 3.0/3.1 port (blue) if the connection is unstable. ⚡ Performance Review Easy Ways to Fix Common WiFi Adapter Problems - TP-Link

"That’s not helpful," he hissed.

As I couldn't find any specific information on the ITek WiFi adapter driver, I assume it's a proprietary driver developed by ITek. If you're looking for a research paper or technical document on this specific driver, I recommend: